Mantle-darning machine.



S.'COHN.

MANTLE DARNING MACHlNE. APPLICATION FILED !AN.20. 1914.

1,161,847. Patented Nov. 30, 191 5.

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MANTLE DARNING MACHINE.

APPLICATION man JAN.20. 191+ 1,161,847. Patented Nov. 30, 1915 2SHEETS-SHEET 2.

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- SAMUEL coniv, on NEW YORK, n. r, essrsn'oa TO MANTLE MACHINERY &PATENTS COMPANY, or'nnw'ronrr, EL, econronnrron or NEwYoRK.

MnNrLE-DA-ninner lvreorrrnn.

iaise-"z.

Original application filed April 17, 1912,5eria1 No. 691,425.- Dividedand this application filed January 20, 1914. Serial No. 813,298. I

form of my improved mechanism attached. Fig. 2 is a similar new of a,portlon ofthe mantle in position in the machine.

7 is a detail sectional view onthe line I mechanism shown in Fig. 1,showing the parts in different position. Fig. 3 is a View similar toFig. 2, showing the parts in still another position. Fig. iis asectional plan view on the l ne -IVIV of F ig. 1.. Fig. 5 is an invertedplan view of a mechanism shown in Fig.1. Fig. 6 is a sectional view. onthe line VIVI of Fig. showing a Fig.

VIIVII"of Fig. 5, showing the pawl for.

rotating the mantlefsupporting member of the darning machine. Fig. 8 isa bottom plan View of. a portion of the mantle show ing a view ofthestitches. Fig. 9 is an inverted plan view of afinished mantles Fig.10 is a View similar to. Fig. 9 of a modified form of mantle. j

My invention relates to'a. darning machine for darning mantles and formsa division of my application Serial No. 691%25, filed April 17, 1912. Ip e 'The object of my invention is to provide a machine which willavoidthe difficulties incident to the thick mass. of longitudinally:

extending folds which are gathered toward thecenter of the'closed end ofthe. mantle.

In accordance with my invention the end of the mantle is gathered, butthe folds are notpulled together and compacted in longi tudinal form. Onthe contrary, a hole is leftof considerable size at the center of themantle, the gathered portions extending inh ,wardly in a transversedirection toward this; hole, and by means of an impregnated thread thehole is mechanically darned so as toclosefi itwith the 'sameY materialas that of the v mantle.

I carrying. 9 the i e ie i a ar na row of stitches is preferably formedaround the hole to the mantle forming threads in' Specification ofLetters Patent. Pateimted NOV. 3%, 1315. e

position, while the hole is darned by means of a plurality ofradial andtangentially disposed stitches extending across the opening. 7 Theprecise nature of my invention'will be best understood by reference tothe accompanying drawings in which I have shown one embodiment of myinvention, it being premised, however, that various changes may be madein the details of construction and general arrangement of the parts, aswell as their timed operation, without'departing from the spirit andscope of my invention, as defined in the :appended claims.

'lhe mantle issecured to thesupportingring in the usual'ma-nnerand thelower shirred portionis drawn togetherand tied byv a drawstring to fixthe size of thehole at the end. The blank is then placed'in the machineand the hole is darned, as hereinafter described. y

Referring to Figs. 1 to 9 of the drawings,

the numeral 2 designates the bed plate of a sewing machine to which Ihave attached one form of my darning machi'ne.- 3 and 4 are rock shafts,jonrnaled in projections tending. downwardly from the bed plate 2, andwhich are arranged to be rocked by thesewing-machine mechanism in timedrelation 'to the; reciprocation of the' needle. Connected to theshaftf't are two levers-5 and 5 and pivotally connected to the upperlever 5 is a feed arm 6, the other'end of, the arm being provided with afork 7 which engages an' eccentric onthe' shaft 3. '8 designates a shaftwhich is rotatably .monnted in abracket 9 connected to. the feed arm 6;

and connectedto this shaft,8 is a ratchet I wheel 10 and a cam wheel-11. The cam wheel 1:1is provided with an equal number of projections andrecesses, .Vthe number 'of recesses and projectionsbeing equal tothenumber of teeth on'the ratchet wheel 10.

Pivotally connected'toqthe lever 5 is a re-- ciprocating pawl 12, whichis provided with a-hook adapted 'to engage the teeth of the ratchetwheel 10 and move it the distance of onextooth when it ismoved in onedirection. 13 is a leaf spring connected to the I bracket 9 and engagingthehooked end of '7 e -P 1.:l 1 11 g i in ne e-..z

ment with the ratchet wheel 10.; Connected to the topof the bed plate 2is an auxiliary bed plate 14: which is provided with side guides 15 inwhich is seated a reciprocating plate 17. 18 is a lock bar seated in atransverse. groove in the slide, plate 17 and in recessed portions 19 inthe upper faces of the 3 side guides 15, which look bar forms a stop iffor the reciprocating plate 17 when moved in 'one'direction. Thisreciprocating plate 17 is moved in one direction by means of the gyratory feed arm 6, as hereinafter described, and ismoved-in the otherdirection by a coiled spring 20 mounted onv a screw or pin 21 on one ofthe guidejpl'ates" 15. R0- tatably mounted in'the reciprocating plate 17is a flanged ring 22 which isprovided with ratchet teeth '22 on itslower face. Connected to the central portion of the-gyratory feed. arm 6is a plate 23; and connected to this plate 23 is a spring arm 24: abovethe i cam plate 11. Extending downwardly from the spring arm 24 is apin25 which is adapted to rest on the cam plate 11, and extending upwardlyfrom the outer end of this spring arm is a tooth 26. 5 27 is a toothwhich extends downwardly from the plate 17 and in line of movement ofthe tooth. These teeth are so arranged that the slide plate will bemoved to the left when the arm Sis moved to'fthe left, ifthe arm andtooth are in their raisedqpositions to move the mantle in a longitudinaldirection to form a'stitch. onthe l opposite side at the opening. ashereinafter described; The flanged ring22' is rotated by means of pawl28connectedto the plate 23 and is adapted toeng'age the teeth on thering- 22 tomove'the ringthe distance of one tooth when the feedarmisraised and moved to the right andfwhen the tooth '26 is in itslowermost-position. 82 is a retaining pawl connected tothe slide p ae'17 to retain the flanged ring 22 in its' shifted pdsition;desi'enates'the-head of a sewing machine in whichsmounted the usualreciprocating needle bar 34 ca rying 'a need e85.

whicl' take the lace of the usual nresser tenets? din t efabric duringthe for ma n" of thestitch. lo it is raised from the fab c a t ev theneed e has been e e a ed to a.

prede ermined point-tolpermittlie fabric jto be hi ted to fo rtifihearious sti ches-kv At tached to th iisiial Dresser bar 87 is a r1110 38hich s arrangedto 'engagethesunp ting loss on the'mantle. ripe. as shownin :132.: Ex entling"upwardlv from the gecl isa' which is adapted toengag one, of. the supporting lugs onthe mantle matte ring 22,

if ave merely shown an. ateaie'et ate... ing' "machine and-haveomitted-the stitch 36 is a' sprin surr u ding the needle and is. arrangd to'retain thefab ic n position 'dur ing? the nnwa dmo emen t of theneedle and this to positively rotate the j'ma'ntle forming mechanism ofthe sewing machine 1 As the needle is elevated, after forming the firststitch, the shaft 3 is rocked to lower the arm 6, and the'sha ft at isalso rocked to move the armti to'the right and beforethe needle descendsto and passes through the fabric, the shafts are rocked to raise the arm6 and move i'tto the left, as shown in Fig. 1'. The

mechanism is so timed that the projection'25 on the bottom of thespring2d is in engagement with a ralsed portion on the cam 11,

which will retain the tooth 26inthisele-- vated position so that it willengage the tooth 27 on the plate 17, and as the arm 6 is moved to theleft it will move the slide plate 17 together with the'ring '22 and themantle, to the left. The needle now passes through the ,fabricto form astitch at b, the thread between'the stitches extending as a' chordacross the opening in the end of the mantle. As the needleascends-aftertlie formation of the stitch b, the arm 6 will be moved tothe right during the reverse movement of the rock shaft 4, and the slideplate 17 will be returned to its vinitial'p'osition by the spring 20.-During this reverse movement of the rock shaft 4, thepawl 12 will bemoved to the left androtate the ratchetwheel 10 the distance of onetooth which will move the cam so that the pin 25-"will rest in one ofthe recesses, as indicated in Fig. 3. The arm .6 1s agaln raised andmoved to the left and, as the tooth 26 is lowered it will not ens gagethe tooth 27 tofmovethe plate17 to the left. but the pawl 28 will engageone of] the teeth 22* and rotate. the ring 22. The needle now descendsandforms a' stitch at c and the thread will extend diametricallyfrom-the stitch b tothe stitch cacross the opening in the bottom of themantle. As the shafts 3 and e are again oscillated to move the arm 6'tothe'left, the tooth 26 will .not

engagethe tooth 2 7, asthe pin 25 is within one of the .recesses'and thetooth 26 is below the tooth 27; The next stitchwiltbe formed 'at Z,thethread extending as a cherd inza manner similarto the thread extend ngfrom a to b.

The above operations arerepeated toform' anplurality of radial andtangential stitches todarn' the hole. If desireda plurality ofstitchesmay be formed around the opening,"

either' before, or after the darning thereof.

The longitudinal movement of the arm 6 is considerably greaterthan thedistance between teeth on the ring 22, and as 'thering is only moved thedistance of onetooth during the reciprocation of the arm 6, the shafts 3and f are so timed that the pawl 28 will be held in engagement with theteeth 22 long enough to mov e the ring 22 the distance of one teeth. Theradially disposed threads are laidduring the reciprocation of the plate17 during which time the ring 22 is not rotated as all of theparts movetogether, and the remaining threads which are in the nature of chords,each extending at one side of the center of the opening are laid duringthe rotation of the ring 21. If desired, I may close the hole by placinga'patch over it, then stitch the patch in place, as shown in Fig. 10.This is done by rotating. the ring instead of reciprocating it. In thatcase the pawl 12 would be disengaged from the ratchet wheel 10 when thecam 11 is in the position shown in Fig. 3, so that the plate 17' wouldnot be reciprocated, but the ring 22 would be rotated during eachreciprocation mg and reciprocating the mantle below the needle of thesewing machine to lay radial and tangential threads between the variousstitches formed by the machine.

I claim: 7

1. In apparatus of the character set forth, the combination with acarriage having a back and forth movement and a work holder rotatablymounted thereon, of means for rotating the work holder, means foreflecting a back and forth movement of the carriage, common operatingmechanism for both of said means, and means for intermittently causingthe means that moves the work holder, to be moved to an inactiveposition.

2. In apparatus of the character set forth, the combination with acarriage having a back and forth movement and a work holder rotatablymounted thereon, of a spring for moving the carriage in one direction, apawl for moving the carriage against the action of the spring, andmechanism for actuating the pawl to move the carriage and release it,and permit the spring to act and for rotate ing the work holder.

3. In apparatus of the character set forth, the combination with acarriage having a back and forth movement and a work holder rotatablymounted thereon, of a spring for moving the carriage in one direction, apawl for moving the carriage against the action of the spring, a pawlfor rotating the work holder, and mechanism for actuating the pawls,said mechanism including a device for moving the pawl into position toactuate the carriage and release it therefrom to permit the spring tomove said carriage.

' 4. A mantle darning machine, comprising a'reciprocatingplate, a rotarymantle holder mounted on said plate, reciprocating mechanism'below saidplate, actuating 00111160", tions for reciprocating said mechanism, aplurality of pawls connected to said mechanism, and actuatingconnections for controlling said pawls so that they will act alternatelyto reciprocate the plate and rotate the mantle holding device;substantially as described. 7 f

5. In a machine for darning mantles, a machine bed, a carriage platethereon, a

work holder rotatably mounted on the carriage plate, a rock shaftbeneath the bed, and pawls operated by the rock shaft, one engaging thecarriage plate to effect its movement, the other engaging the workholder to rotate it.

6. In a machine fordarning mantles, a machine bed, a carriage platethereon, a work holder rotatably mounted on the carriage plate, a rockshaft beneath the bed, pawls operated by the rock shaft, one engagingthe carriage plate to effect its back and forth movement, the otherengaging the work holder to rotate it, a cam for moving one of the pawlsinto operative position, and means for periodically rotating the cam.

7. In mechanism of the character set forth, the combination with arotatable work holder capableof back and forth movement and stitchforming mechanism cooperating therewith, of means including pawls forrespectively rotating the work holder and giving it aback andforthmovement, and

means for alternately throwing one of said pawls into and out ofoperation.

8. In mechanism of the character set forth, the combination with areciprocatory work holder and stitch forming mechanism cooperatingtherewith, of a feed arm, a pawl carried by the feed arm and movableinto and out of coaction with the work holder, means for moving the armback and forth, a rotary cam that engages the pawl to intermittentlymove it into said coaction, and a device operating with the feed arm forintermittently rotating the cam.

9. In mechanism of the character set forth, the combination with areciprocatory the arm and engaging one of the paWls, and v ratchetmechanism operated by the rock shaft for intermittently rotating thecam.

11. In mechanism of the character set V forth, the combination With atable, a rotatable Work holder thereon having ratchet teeth, and stitchforming mechanism (:0- operating With the Work holder, of rock shaftsjournaled beneath the table, an arm having its ends eccentricallyconnected to the rock shafts, and a pawl carried by the arm and engagingthe teeth of the WOlk' holder to effect a step-bystep rotation thereof.g

12. In mechanism of the character set forth, the combination With atable, a re- Liar- 47 of the rock shafts and an eccentric bearing at itsother end with the other rock shaft, and a pawl carried by the armbetween its ends and engaging the teeth of the Work holder to effect astep-by-step rotation thereof. 1

In testimony whereof, I have hereunto set my hand. v

SAMUEL GOHN.

Vitnesses A. HoLMAN, C. SoHULz.

Copies of this 'patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, I). C. t

